Delta MMC120 User Manual Page 98

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Appendix B: Event Control MMC120 Linear Motion Control Module
98 Delta Computer Systems, Inc 360/254-8688
Link Type b - Status bit off
This Link Type causes the MMC120 to execute the next Step in the sequence as soon as one of the selected
status bits is set to 0. The Link Value for Link Type b is a bit pattern expressed in hexadecimal. For example,
bit pattern 0000 0000 0010 0000 binary is 0020 hex, and specifies bit 11 (State bit B). If this bit is set to 0 the
next Step will execute.
Link Type D - Delay
When a Step containing this Link Type is entered, the command is executed and a timer is started. When the
timer reaches the value specified by the Link Value, the next Step will execute. The delay time specified by
link value is in milliseconds. This Link Type allows delays between steps of 0 to 65 seconds in one millisecond
increments.
Link Type L - Limit switch
When the Target Position of the axis reaches the value specified by Link Value, the next Step in the chain
executes. This Link Type can be used to change speeds on-the-fly or trigger events on the other axis.
Link Type l (lower case L) - Actual Position
When the Actual Position of the axis reaches the value specified by the Link Value, the next step in the chain
executes. This link type functions like the 'L' link type.
Link Type N – Target Position Relative from Command Position
This type is similar to the 'L' link type but the target position is relative to the Command Position rather than an
absolute position.
Link Type n – Actual Position Relative from Command Position
This link type is similar to the 'N' link type but the distance is from the Command Position.
Link Type R – Target Position Relative from Start
The next Step in the sequence executes when the Target Position reaches the value specified by Link Value.
Link Type r – Actual Position Relative from Start
The next Step in the sequence executes when the Actual Position reaches the value specified by Link Value.
Link Type S - Target Speed
The next Step in the sequence executes when the Target Speed (calculated by the Target Generator) reaches the
value specified by Link Value.
Link Type s - Actual Speed
The next Step in the sequence executes when the Actual Speed reaches the value specified by Link Value.
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